Hi Evgeniya, As you move through the course, you should be looking at videos and using the workbook simultaneously. As well, you should use the editing services to practice Task 1 and 2 and get feedback. In addition, it is a good idea to book a couple of practice speaking interviews. Of course, do this after you have completed the Writing and Speaking sections of the course. Once you have finished all of the work, do timed practice tests from Test Book 2. Keep up the good studies.